Heico (HEI) closed at $345.09 on November 10, 2026, up 0.7% from the previous close, on volume of 283,075 shares (30-day average 438,540).
Data as of November 10, 2026.
10-Nov-2026
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Ranked by contracts: multi-leg trades of 200 or more contracts on one day, through Nov 9, 2026. See the 10 largest for 30, 60 and 90 days
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Heico is an aerospace and defense supplier that focuses on creating replacement parts for commercial aircraft and components for defense products. In commercial aerospace, Heico is the largest independent producer of replacement aircraft parts. In the defense market, the company produces niche subcomponents used in targeting technology as well as simulation equipment, among other categories. It operates two segments: the flight support group and the electronic technologies group. Both supply the aerospace and defense sectors to different degrees. Heico is persistently acquisitive, focusing on companies in similar or adjacent markets that offer strong cash flow and profitable growth potential.
Heico trades on the NYSE stock market under the symbol HEI.
As of November 10, 2026, HEI stock price climbed to $345.09 with 283,075 million shares trading.
HEI has a beta of 1.06, meaning it tends to be more sensitive to market movements. HEI has a correlation of 0.15 to the broad based SPY ETF.
HEI has a market cap of $48.21 billion. This is considered a Large Cap stock.
Last quarter Heico reported $1 billion in Revenue and $1.67 earnings per share. This beat revenue expectation by $65 million and exceeded earnings estimates by $.16.
In the last 3 years, HEI traded as high as $376.86 and as low as $162.12.
The top ETF exchange traded funds that HEI belongs to (by Net Assets): VO, VTI, XAR, VUG, VXF.
HEI has underperformed the market in the last year with a return of +6.9%, while the SPY ETF gained +12.9%. In the last 3 month period, HEI fell short of the market, returning -6.1%, while SPY returned -2.8%. However, in the most recent 2 weeks HEI has outperformed the stock market by returning +11.4%, while SPY returned -2.0%.
HEI support price is $334.23 and resistance is $351.19 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that HEI shares will trade within this expected range on the day.
